ILL GIVE BRANLIEST given the function f= {(3,1),(4,-2),(1,-1),(-3,4)}
1. determine f(1):
2 for what value of x is f(x)=1:

1.  f(1) = -1

2. for x=3 f(x)=1

Step-by-step explanation:

According to function definition:

 for x=1  f(x)=f(1)=-1   (for first answer)

 for x=3 f(x)=f(3)=1   (for second answer)

answear:

a

step-by-step explanation: a

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!